Materials Literature
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A series of titanium oxides was prepared by using a surfactant-template method (STM) and used as a carrier for the sustained release of ibuprofen, which was chosen as a model drug. This STM provides an efficient route to TiO(2) matrices with both high surface area (when compared with those that were obtained by using…
Spheres and self-assembled wires of α-NiS (the hexagonal phase) have been successfully synthesized by a facile mix solvothermal route (glycol and water). Varying the volume ratio between glycol and water, and leaving the other conditions unchanged, the urchin-like β-NiS (the rhombohedral phase) microstructures were al…
Three new isomeric asymmetric diarylethenes with a naphthyl moiety and a formyl group at the para, meta or ortho position of the terminal benzene ring were synthesized. Their photochromism, fluorescent-switch, and electrochemical properties were investigated. Among these diarylethenes, the one with a formyl group at t…
were controlled by PMMA plasma etching. Time-resolved spectroscopy of plasmon-coupled SQDs revealed a strong shortening of the longest lifetime and ~9-fold PL enhancement. Polarization-resolved PL spectroscopy displayed linear polarization and depolarization at near- and far-field plasmon-coupling, respectively. The p…
Adsorption onto carbon nanotube bundles may find use in various applications such as gas preconcentration and separation, and as a result, it is of great interest to study the adsorption properties of such bundles. The adsorption of linear alkanes, with their systematic variation through chain length, is particularly…
In order to study the crystal structure, phase relationships, and magnetic properties of the system Tb${}_{5\ensuremath{-}\mathit{x}}$La${}_{\mathit{x}}$Si${}_{2}$Ge${}_{2}$, a series of polycrystalline samples with compositions ranging from $x=0$ to $x=5$ have been synthesized and characterized in detail. At room tem…
The temperature gradient of refractive indices, dn e/dT and dn o/dT of a number of liquid crystals of different homologous series are analysed. It was found that the materials studied possess high clearing temperatures and the cross over temperatures estimated are well above room temperature and they show an odd–even…
Nanocomposites based on polypyrrole (PPy) doped with molybdate (PPy(MoO4)) and montmorillonite (MMT) were prepared by chemical polymerisation. The morphology of nanocomposite particles was studied by scanning electron microscopy. The chemical structure of conducting polymers (CPs) in nanocomposites was characterised b…
Nitrile butadiene rubber (NBR)-nanoclay composites have been prepared. Maleic acid anhydride-treated organoclay (MOC) was synthesized and utilized as a compatibilizer. The prepared clay structures were analyzed by Fourier transform infrared (FTIR) spectroscopy. Furthermore, the FTIR investigation confirmed the incorpo…
In the present study, different cobalt precursors, such as cobalt acetylacetonate (CoAA), cobalt acetate (CoAC), cobalt nitrate (CoN) and cobalt chloride (CoCL), were employed to synthesize the cobalt on cobalt-aluminate catalysts by the solvothermal process. The calcined samples were characterized by means of N2 phys…
Langmuir monolayers of double perfluoroalkyl(alkyl) chain amphiphiles fitted with a monomorpholinophosphate polar head, [C(n)F(2n+1)(CH(2))(m)O](2)P(O)[N(CH(2)CH(2))(2)O] (di(FnHm)MP with n = 6, 8, or 9; and m = 1 or 2), were investigated by surface pressure (π)/molecular area (A(0)) compression isotherms for temperat…
Poly o-anisidine (POA) was prepared by chemical oxidation polymerization, and the nanocomposite of this polymer was mixed with different nanopowder metal oxides. The size and morphology of these synthesized POA/nanocomposites were shown using a transmission electron microscope (TEM). Fourier-transform infrared (FTIR)…
This paper deals with the theoretical investigation of the effect of Hall currents on the thermal stability of a ferromagnetic fluid heated from below in porous medium. For a fluid layer between two free boundaries, an exact solution is obtained using a linearized stability theory and normal mode analysis. A dispersio…
Bis-{[(4-hydroxybutoxyphenyl)methylidene]aminophenoxyhexyl}benzene-1,3-dicarboxylate – a novel A 2 diol monomer – and a series of new blocked isocyanates (B 3 monomers) were synthesized in high yield and their structures were confirmed. Using these monomers, different hyperbranched polyurethanes (HBPUs) containing azo…
Abstract A simple technique for studying the brittleness of small crystals is reported. The limits of fracture toughness of tetragonal hen‐egg white lysozyme crystals, oriented with their c‐axis normally to the substrate, were measured. The strong mechanics anisotropy of those crystals was confirmed. The role of the w…
Abstract Der zunehmende Ausbau erneuerbarer Energien erfordert einen raschen Aufbau chemischer Energiespeicher. Die Einspeisung von regenerativ erzeugtem Wasserstoff ins Erdgasnetz stellt eine Option hierfür dar. Eine thermodynamische Analyse zeigt, dass die Einspeisung ins Erdgasnetz verglichen mit anderen chemischen…
S band region of electromagnetic spectra is used in versatile applications as in multimedia and communication. Electromagnetic interference makes several electrical, economic, and biological adverse effects. Flexible electromagnetic interference shield from polyaniline-TiO 2 hybrid coated cotton fabric was developed a…
We investigated the interaction of oxygen with the Pd(112) surface from ultrahigh vacuum up to 5 mbars oxygen partial pressure in a temperature range from 523 to 673 K. We combined in situ surface x-ray diffraction with scanning tunneling microscopy, high-resolution core-level spectroscopy, and low-energy electron dif…
We reevaluate the interaction of pyridine and p-benzoquinone using functionals designed to treat dispersion. We compare the relative energies of four different structures: stacked, T-shaped (identified for the first time), and two planar H-bonded geometries using these functionals (B97-D, ωB97x-D, M05, M05-2X, M06, M0…
In this work, we have investigated the effect of Ti nanoparticles (NPs) decoration on the photoluminescence (PL) and photodetection behaviour of ZnO nanowires (NWs) array. ZnO/Ti NW heterostructure was fabricated by synthesising dense NW arrays by uniform decoration of Ti NPs of two different sizes on the surface of t…